Google-api-php Refresh Token returns invalid_grant

Question

I\'ve nearly searched every result of the first page of google for this. But can\'t seem to find the answer. I\'m working with a refresh_token by Google\'s API and receiving

Answer 1

You'll get an "invalid_grant" error if you try to refresh when the token isn't expired.

Instead of this:

$client->refreshToken(file_get_contents('../_config/refreshtoken.conf'));

Use this:

$client->setAccessToken(file_get_contents('../_config/refreshtoken.conf'));

Once your token expires you refresh should work.